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(.No Model.)

L. J. MASTBRSON.

ROLLING MILL.

No. 267,983. Patented Nov. 21-l 1882.

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LEVI J. MASTERSON, 4OF PHILADELPHIA, PENNSYLVANIA, .ASSIGNOR TO GEORGEH. ORCUTT, GEORGE HARDIN G, AND RUDOLPH M. HUNTER, ALL

F SAME PLAGE.

sPEcIFIcATIoN' forming pere ef Letters 'Patent No. 267,983, datedvNovember 21,1882,

Application led June 30, 1882. (No model.)

To all whom it may concern Be it known that I, LEVI J'. MASTERSON, ofthe city and county ofPhiladelphia, and State of Pennsylvania, haveinvented an Improvement in Rolling-Mills, of which the following .y is aspecification.

My invention has reference to rolling-mills, but more particularly tothe mechanism by which the rod which is being rolled is given a 1opartial revolution; and `it consists in the arrangement of a series ofpairs of Vrolls for reducin g the metal, having their axes horizontal,incombination with a series of pairs of feed-` rolls whose operativesurfaces are constituted of spring-threads arranged about theirperipheries, and having their axes oblique or vertical, a pair of saidfeed-rolls being arranged between every two pairs of reducing-rolls,andin many details ot' construction, all ot which are zo fully set outin the following specification, and shown in the accompanying drawings,which form part thereof.

The object of my invention is to cause a partial rotation of the barwhich is being rolled,

`2 5 and during its passage fromone pair of rolls tothe next, wherebyall ofthe said rolls may be arranged with their axes horizontal, whichposition is necessary for economical working and keeping of the rollscool, the said partial 3c rotation being effected by suitablespringfeedrollers, which automatically adj ust themselves tothe bar tobe turned.

In the drawings, Figure 1 is a vertical section through a series ofreducingand feed rolls. 3 5 Fig. 2 is afrontelevation of myiinprovedfeedrolls. Fig. 3 is a plan of same. Fig. 4 is an elevation of aspring-thread, made square in cross-section. Fig.5is a similar view inwhich the thread is made triangular, and Fig. 6 is a 4o similar View inwhich the thread is made substantially parabolical.

A A A2 A3 are the reducing-rolls, and are arranged in pairs, one abovethe other, their axes being horizontal.

B B 2B2 are the feed-rolls, and are also arranged in pairs, each pairbeing arranged between two pairs of reducing-rolls, as shown, havingtheir axes vertical or oblique.

- G C' G2 C3 represent the bars in the act of 5o being rolled.

The `feed-rolls are constructed as follows:

v'I wo cylindrical bodies, F, are journaled rigidly or adjustably ateach end f to the frame E, open at the top between the two journalsf, asshown at E. The bottoms of these bodies F are provided with flanges orcollars H, which may be provided with lips h, if desired, to preventdisplacement ot' the end of the spring threads or helices I, whichencircle the said bodies and rest upon the flanges or collars. Thesespring helices or threads may be of any ldesired cross-section, thedrawings showing elliptical or oval, square or rectangular, triangular,and parabolic sections.

2. These spring helices or threads are clamped in place by screw-nut G,which is' locked in place by a lock-nut, G', these nuts Yworking onscrew-threads F upon the upper end of the bodies F. Any other well-knownmeans may In practice I prefer the oval or elliptical, as shown in Fig.

be employed to hold the springs in place, and v the device as awhole maybe made adjustable,

so as to set it for any desired pitch of thread, V

which may be varied by said nuts.

. In arranging the feed-rolls between the main or reducing rolls lprefer to gradually decrease their Obliquity in accordance with thevariation ofthe pitch of the spring-threads; but even this is notabsolutely necessary, inasmuch as the elasticity in the threads causesthem to adjust themselves automatically to any sized or shaped bar. Thereducing-rolls reduce the bar to a flattened oval or analogous shape,and before passing to the next pair of reducingrolls the feed threads orhelices cause it to be turned a quarter 0f a revolution, so as to be fedwith its widest section in a vertical or nearly vertical line, so thatwhen passed through the next pair of reducing-rolls itis againflattened, e

IOO

ducing-rolls, in combination .with a series of oblique feed-roll bodies,said feed-roll bodies being arranged in pairs between every two pairs ofreducing-rolls, and having springfeedthreads about their peripheries,substantially as and for the purpose specified.

3. In a rolling-mill, a series of horizontal reducing-rolls, incombination with a series of oblique feed-roll bodies, said feed-rollbodies being arranged in pairs between every. two pairs of reducingrolls, having spring feedthreads about their peripheries, and a graduvally-decreasing Obliquity, substantially as and for the purposespecified.

.4. In a'rolling-mill, a series of pairs of horizontal reducing-rolls,in combination with a series of twisting and feeding rolls, saidfeedrolls being arrangedin pairs between every two pairs ofreducing-rolls, and each successive pair having axes of agradually-decreasing obliquity and approaching thevertical line,substantially as and for the purpose specied.

5. Apairot'horizontalreducingrolls,in coinbination with a pair ot'twisting feed-rolls arranged in front of same, and adapted to feed thebar to said reducing-rolls, and at tlie saine time turn the said bar apart of a revolution, said rolls being provided with elastic helicalfeed flanges or ribs, substantially as and for the purpose specified.

6. A pair ot' feed-roll bodies provided with devices to Vfeed the bar toa pair of reducing rolls, and at the saine time give said bar apartialrotation, said devices consisting of elastic helical feed flanges orribs, in ombin ation With means to change the pitch of said helicalribs, substantially as and for thepurpose specified.

7. Apair of horizontal reducing-rolls, in conibination with a pair ofroll-bodies having twisting feed devices arranged in front of same, andadapted through said devices to give the bar a partial revolution as itis being fed to the said reducing-rolls, said devices consisting ofelastic helical flanges or ribs, the ribs of both of said helicesbeingeither rightorleft handed, substantially as and for the purposespecified.

S. A pair of feed spirals or helices having elasticity, and arranged torotate in opposite directions, and between which the bar is fed, wherebythe said bar is fed horizontally, and also turned a part of arevolution, substantially as and for the purpose' specified.

9. Ina rolling-mill, the feed-roller bodies F, provided with shouldersor lianges H, in coinbination withnuts G G', or their equivalent, springthreads or ribs I, and frame E, substantially as and for the purposespecified.

10. The frame E, having opening i" at top, in combination withroller-bodies F and their spring threads or ribs I, substantially as andfor the'purpose specified.

In testimony of which invention I hereunto set my hand.

LEVI J. MASTERSON.

Witnesses:

R. M. HUNTER, R. S. CHILD, J r.

